i have two old green Spri resistance tubes that I want to replace. They're listed as medium on the Spri site and I believe the green ones on the Cathe site are considered heavy resistance. Is that true? What would be comparable to the Spri green? Thank you so much.
I have Cathe’s medium tension blue tubing still and also her newer ones also, I think you will be very satisfied with Cathe’s tubing. I liked them better than “golds gyms”brand
